;# ctime.pl is a simple Perl emulation for the well known ctime(3C) function.

;#

;# Waldemar Kebsch, Federal Republic of Germany, November 1988

;# kebsch.pad@nixpbe.UUCP

;# Modified March 1990, Feb 1991 to properly handle timezones

;# $RCSfile: ctime.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:23:47 $

;# Marion Hakanson (hakanson@cse.ogi.edu)

;# Oregon Graduate Institute of Science and Technology

;#

;# usage:

;#

;# #include <ctime.pl> # see the -P and -I option in perl.man

;# $Date = &ctime(time);

CONFIG: {

package ctime;

@DoW = ('Sun','Mon','Tue','Wed','Thu','Fri','Sat');

@MoY = ('Jan','Feb','Mar','Apr','May','Jun',

'Jul','Aug','Sep','Oct','Nov','Dec');

}

sub ctime {

package ctime;

local($time) = @_;

local($[) = 0;

local($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst);

# Determine what time zone is in effect.

# Use GMT if TZ is defined as null, local time if TZ undefined.

# There's no portable way to find the system default timezone.

$TZ = defined($ENV{'TZ'}) ? ( $ENV{'TZ'} ? $ENV{'TZ'} : 'GMT' ) : '';

($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst) =

($TZ eq 'GMT') ? gmtime($time) : localtime($time);

# Hack to deal with 'PST8PDT' format of TZ

# Note that this can't deal with all the esoteric forms, but it

# does recognize the most common: [:]STDoff[DST[off][,rule]]

if($TZ=~/^([^:\d+\-,]{3,})([+-]?\d{1,2}(:\d{1,2}){0,2})([^\d+\-,]{3,})?/){

$TZ = $isdst ? $4 : $1;

}

$TZ .= ' ' unless $TZ eq '';

$year += 1900;

sprintf("%s %s %2d %2d:%02d:%02d %s%4d\n",

$DoW[$wday], $MoY[$mon], $mday, $hour, $min, $sec, $TZ, $year);

}

1;